Abstract: Solid-liquid separation exists in a variety of industrial applications, mainly in chemical and petrochemical plants, including paper, food, and pharmaceutical processing. In several industrial applications filtration could be dedicated to protect mechanical devices against specific size of solid particles or to feed subsequent processing of the solid or liquid products. In some other cases reduction of loaded solid phase could be required. If filtration through a sieve is considered its elements consist of wire mesh screens, simple perforated and slotted plates or fibre-based filter or screen elements. In such a case major disadvantages are high-pressure drops on a sieve and clogging as well as the wear, and tear of mechanical elements. While designing a new slotted sieve as an intrusive element in a pipeline, the first step is to perform experiment in order to measure the local frictional coefficient.
The paper presents experimental stand, methodology and results of measurements of local frictional losses in a chosen slotted sieve installed in a horizontal pipeline. Experiments are conducted for carrier liquid flow only in case of the first step being focused on tuning of the experimental stand. Such experiments are useful because they provide a reference point for further measurements of local frictional losses in slotted sieves in cases when solid-liquid flow is considered.
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